Stamp and envelope moistener



FIG. 1 is a perspective view of a stamp and envelope moistener showing my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a left side elevational view thereof; and,

FIG. 5 is a rear elevational view thereof.

The bottom plan view forms no part of the claimed design. 

The ornamental design for a stamp and envelope moistener, as shown and described. 